A welding fixture

Abstract

The application provides a welding tool, and relates to the field of welding auxiliary tools. The welding tool comprises a base, two supporting seats connected with the base, and two columns each in sliding connection with the supporting seat, the supporting seat is provided with a sliding groove for the movement of the column, a linear cylinder is movably connected to the column, two ends of the linear cylinder are movably connected with a pneumatic arm, the pneumatic arm is movably connected with the column, and the pneumatic arm can be locked by the cylinder.

Description

Technical Field

[0001] This application relates to the field of welding auxiliary tooling, and in particular to a welding tooling. Background Technology

[0002] Welding fixtures are key equipment in the full welding process of gantry frames. They are mainly used to assist in positioning and fixing the gantry frames after spot welding so that manual or robotic welding can be performed.

[0003] Related technology can be found in Chinese Utility Model Patent No. CN217727676U. This utility model discloses a tooling for preventing deformation during welding of a forklift mast. It includes a rotating rod, a pair of sleeves, and a pair of supporting blocks, each supporting block being U-shaped. Both ends of the rotating rod are inserted into the pair of sleeves and threadedly connected to them. The other ends of the sleeves are fixedly connected to one side of the U-shape of the supporting blocks. A pair of clamping bolts are connected to the other side of the U-shape of the supporting blocks. The forklift mast is placed horizontally, and four or more of the above-mentioned tooling are horizontally and evenly arranged at the lower end of the forklift mast. A pair of lower channel steel plates of the forklift mast are located correspondingly on the pair of supporting blocks. Adjusting each pair of clamping bolts clamps a pair of lower channel steel plates. Therefore, after the forklift mast is welded, this tooling is used for fixation, controlling welding deformation. After sufficient cooling, the tooling is disassembled, thus effectively controlling the welding deformation of the forklift mast.

[0004] However, the existing welding fixtures still have the following shortcomings: in order to adapt to forklift masts of different sizes, the clamping bolts of each pair of fixtures need to be tightened in sequence, which is cumbersome. Utility Model Content

[0005] This application provides a welding fixture that solves the problem of cumbersome operation.

[0006] The technical solution adopted in the embodiments of this application is as follows: In a first aspect, embodiments of this application provide a welding fixture, which includes a base, two support seats rotatably connected to the base, and two columns fixedly connected to the support seats. The two sets of columns are connected by bolts and short welds to a linear cylinder. The linear cylinder is provided with a sliding groove and is slidably connected to a pneumatic arm. The pneumatic arm can be locked by the cylinder.

[0007] By adopting the above technical solution, the pneumatic boom can achieve precise movement under the drive of the linear cylinder, ensuring that the pneumatic boom can accurately reach the predetermined position. The pneumatic boom can slide and lock on the linear cylinder, which can be adapted to different sizes of masts. It achieves the effect of being adaptable to different sizes of masts, while the adjustment and locking are completed by the cylinder, making the operation simple.

[0008] In one alternative implementation, two linear cylinders are provided and are evenly distributed on the column.

[0009] By adopting the above technical solution, the two cylinders work together to apply clamping force simultaneously on both sides of the gantry, ensuring that the gantry maintains a stable posture during the welding process and can be reliably fixed even when the support and column are flipped, thus improving the stability of the tooling system.

[0010] In one alternative implementation, the opening degree of the pneumatic arm can be adjusted by a cylinder.

[0011] By adopting the above technical solution, the opening degree of the pneumatic boom can be adjusted by a cylinder, achieving the effect of adapting to forklift masts of different sizes.

[0012] In one alternative implementation, the clamping end of the pneumatic arm is provided with an elastic pad.

[0013] By adopting the above technical solution, the clamping end of the pneumatic arm is equipped with an elastic pad. When the pneumatic arm is locked, the elastic pad will buffer the pressure generated by the pneumatic arm, thereby reducing the rigid contact between the pneumatic arm and the clamped object, reducing damage to the components, and achieving the effect of extending service life.

[0014] In one alternative implementation, the groove is marked with graduations.

[0015] By adopting the above technical solution, the slide is marked with graduations, enabling operators to move the pneumatic boom to the required position more quickly and accurately, thereby improving ease of use.

[0016] In one alternative implementation, the surface of the column that contacts the forklift mast is provided with anti-slip texture.

[0017] By adopting the above technical solution, the anti-slip texture increases the surface roughness, providing greater static friction under the same clamping force, thus achieving the effect of further improving stability.

[0018] In one alternative implementation, a positioning cylinder for assisting robotic welding is also included.

[0019] By adopting the above technical solution, the positioning cylinder can provide an accurate position reference for robot welding, ensuring that the robot can perform precise welding according to the preset trajectory, thereby improving production accuracy.

[0020] In one alternative implementation, both the support base and the column are made of carbon steel.

[0021] By adopting the above technical solutions, carbon steel has sufficient strength and rigidity to withstand various loads during the welding process, ensuring that the tooling does not deform or get damaged during long-term use, thus achieving a long service life.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Driven by a linear cylinder, the pneumatic boom can achieve precise movement, ensuring that the pneumatic boom can accurately reach the predetermined position. The pneumatic boom can slide and lock on the linear cylinder, which can be adapted to masts of different sizes. The adjustment and locking of the pneumatic boom are all completed by the cylinder, making operation simple. 2. The clamping part of the pneumatic arm is equipped with an elastic pad, which can buffer the pressure generated after the pneumatic arm clamps, reduce the rigid contact between the pneumatic arm and the clamped object, and thus extend the service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a forklift mast.

[0024] Explanation of reference numerals in the attached diagram: 1. Base; 2. Support base; 3. Column; 4. Linear cylinder; 5. Pneumatic boom; 6. Positioning cylinder. Detailed Implementation

[0025] The present application will be further described in detail below with reference to all the accompanying drawings in the embodiments of the present application.

[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. It should be understood that when component A is fixedly connected to component C via component B, changes in the relative positional relationship due to deformation of components A, B, and C are permissible. The integrated structure obtained by the two components through a one-piece molding process means that during the formation of one of the two components, that component is connected to the other component, without requiring further processing (such as bonding, welding, snap-fit ​​connections, or screw connections) to connect the two components.

[0027] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "side", etc., are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] The term "multiple" refers to at least two. The term "more than" includes the stated number. The term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] This application discloses a welding fixture.

[0030] Reference Figure 1 A welding fixture includes two bases 1, one of which is equipped with a control panel.

[0031] The base 1 is made of welded structural components, and its side surface is machined with an installation reference surface. Each base 1 is rotatably connected to a triangular support 2.

[0032] Two support bases 2 are symmetrically fixed to both sides of the base 1 by high-strength screws, and the support bases 2 are rotatably connected to two columns 3.

[0033] The upright 3 is a rectangular cross-section welded part. One of the uprights 3 has a notch in the middle. The surface of the upright 3 that contacts the forklift mast is provided with anti-slip texture. The anti-slip texture increases the surface roughness and provides greater static friction, making the upright 3 more stable when fixing the forklift mast. One of the uprights 3 has a notch in the middle to adapt to the shape of the forklift mast.

[0034] The column 3 is also movably connected to two linear cylinders 4. The linear cylinders 4 are long and perpendicular to the length of the column 3. The linear cylinders 4 have grooves marked with scales. Both ends of the linear cylinders 4 are slidably connected to pneumatic arms 5. The pneumatic arms 5 can slide on the linear cylinders 4 and be locked by the cylinders, thereby securing the forklift mast. The control panel can control the operation of the cylinders.

[0035] The pneumatic arm 5 is clamp-shaped, and the clamping part of the pneumatic arm 5 is equipped with an elastic pad. The elastic pad can buffer the pressure generated when the pneumatic arm 5 clamps, thereby reducing the rigid contact between the pneumatic arm 5 and the clamped object, reducing the possibility of damage to the pneumatic arm 5 and the object, and extending the service life.

[0036] The opening degree of the pneumatic boom 5 can be controlled by a cylinder, allowing the pneumatic boom 5 to be adapted to more sizes of masts for welding repair, thus improving its versatility.

[0037] Both the support base 2 and the column 3 are made of carbon steel. Carbon steel has sufficient strength and rigidity to withstand various loads during the welding process, ensuring that the tooling does not deform or get damaged during long-term use and has a long service life.

[0038] The column 3 is fixedly connected to a positioning cylinder 6, which is used to assist in positioning during robot welding to ensure the accuracy of the welding.

[0039] The implementation principle of a welding fixture in this application embodiment is as follows: the pneumatic arm 5 can achieve precise movement under the drive of the linear cylinder 4, ensuring that the pneumatic arm 5 can accurately reach the predetermined position. The pneumatic arm 5 can slide and lock on the linear cylinder 4, which can be adapted to different sizes of masts. Moreover, the opening degree of the pneumatic arm 5 can be controlled, so that the pneumatic arm 5 can clamp masts of different sizes, thereby adapting to more sizes of masts.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0041] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding fixture, comprising a base (1), two support seats (2) rotatably connected to the base (1), and two columns (3) fixedly connected to the support seats (2), characterized in that: The two sets of columns (3) are connected by bolts and short welds by a linear cylinder (4). The linear cylinder (4) is provided with a sliding groove. The linear cylinder (4) is slidably connected to a pneumatic arm (5). The pneumatic arm (5) can be locked by the cylinder.

2. The welding fixture as described in claim 1, characterized in that: Two linear cylinders (4) are provided and are evenly distributed along the length of the column (3).

3. The welding fixture as described in claim 1, characterized in that: The opening degree of the pneumatic arm (5) can be adjusted by a cylinder.

4. The welding fixture as described in claim 1, characterized in that: The clamping end of the pneumatic arm (5) is provided with an elastic pad.

5. The welding fixture as described in claim 1, characterized in that: The groove is marked with graduations.

6. The welding fixture as described in claim 1, characterized in that: The surface of the column (3) that contacts the forklift mast is provided with anti-slip texture.

7. The welding fixture as described in claim 1, characterized in that: It also includes a positioning cylinder (6) for assisting robot welding.

8. The welding fixture as described in claim 1, characterized in that: Both the support base (2) and the column (3) are made of carbon steel.

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